1 files changed, 64 insertions, 0 deletions
diff --git a/ace/ace_semaphore.h b/ace/ace_semaphore.h
new file mode 100644
index 00000000000..df6c9c4c6e0
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+++ b/ace/ace_semaphore.h
@@ -0,0 +1,64 @@
+/* -*- C++ -*- */
+
+//=============================================================================
+/**
+ *  @file    ace_semaphore.h
+ *
+ *  $Id$
+ *
+ *  @author Douglas C. Schmidt (schmidt@cs.wustl.edu)
+ *  @author etc
+ */
+//=============================================================================
+
+#ifndef ACE_ACE_SEMAPHORE_H
+#define ACE_ACE_SEMAPHORE_H
+#include "ace/pre.h"
+
+#include "ace/config-all.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+// These hooks enable ACE to have all dynamic memory management
+// automatically handled on a per-object basis.
+
+# if defined (ACE_LACKS_KEY_T)
+#   if defined (ACE_WIN32)
+   // Win32 doesn't use numeric values to name its semaphores, it uses
+   // strings!
+typedef char *key_t;
+#   else
+typedef int key_t;
+#   endif /* ACE_WIN32 */
+# endif /* ACE_LACKS_KEY_T */
+
+# if defined (ACE_HAS_POSIX_SEM)
+#   include /**/ <semaphore.h>
+#   if !defined (SEM_FAILED) && !defined (ACE_LACKS_NAMED_POSIX_SEM)
+#     define SEM_FAILED ((sem_t *) -1)
+#   endif  /* !SEM_FAILED */
+
+typedef struct
+{
+  sem_t *sema_;
+  // Pointer to semaphore handle.  This is allocated by ACE if we are
+  // working with an unnamed POSIX semaphore or by the OS if we are
+  // working with a named POSIX semaphore.
+
+  char *name_;
+  // Name of the semaphore (if this is non-NULL then this is a named
+  // POSIX semaphore, else its an unnamed POSIX semaphore).
+
+#   if defined (ACE_LACKS_NAMED_POSIX_SEM)
+  int new_sema_;
+  // this->sema_ doesn't always get created dynamically if a platform
+  // doesn't support named posix semaphores.  We use this flag to
+  // remember if we need to delete <sema_> or not.
+#   endif /* ACE_LACKS_NAMED_POSIX_SEM */
+} ACE_sema_t;
+# endif /* !ACE_WIN32 */
+
+#endif /* ACE_ACE_SEMAPHORE_H */
+